Fig. 2.
Phase-contrast photomicrographs of hematopoietic-like clusters from differentiated ES colonies.
(A) A hematopoietic-like cluster (magnification, ×100). (B) A hematopoietic-like cluster showing morphologic characteristics similar to an embryonic blood island (magnification, ×100). (C) A hematopoietic-like cluster induced by BMP-4 (magnification, ×100).